Extraction device for artillery



y .lum 1o, 1924. 1,497,325

P. J. CHARBONNIER BXTRACTION DEVICE FOR ARTILLBRY Filed July 27 ,v -1922 10 Sheetsfsheet 1 a flug June 10, 1924; 1,497,325

- P. J.CHARBONN|ER sx'ruc'rxou nnvwsl ron uu-mun una .my 27. 1922 1o sheets-shut z PJ 6770/100 ,7 l? fr June 10; 19244. i .Y 1,497,325

P. J. CHARBONNIER l BXTMM'ION DBVIQB I'OR ARTILLIRY rma .my 2v.. naa 1o suma-snm s Jme 10. 1924.4

P. JaiCHARBONNIER sx'r'mcnou Davie; roi! Immun! Filed Juli y27 1922 10 Shania-Shoot. 4

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w L m w P J CHARBQNNIER l BITRACTION D VI E FOR ARTILLBRY BEST AVAILABLE COPY BEST AVAlL/BLE COPY Patented June l0, 1924.

UNITEDV STATES PATENT OFFICE.

` i ax'rnA'c'rIoN Davies ron Aarmnsav.

- sppnoiiao'n mea my 27, 1922. lseran No. 578,002.

To all whom it may concern.

Be it known that I, Paosrsn JULas Cnam noxmrm, a citizen of the Republic of France, and residing at Paris, Seine Department, in the Republic of France, have invented certain new and useful Extraction Devices for Artillery, of which the following is a speci# fication.

This invention relates to a device which is applied to cannon for the purpose of extracting the cartridge cases and it is applicable to all types and calibres, com rising elements of a simple character an reliable operation.

The said device makesuse of the power lstored up by the recoil of the spring recuperators in order to effect the extraction proper, the first startingl of the cartridge case being obtained by t e opening of t c breech block.

The form of construction described hereunder by way of example is applicable to all types of cannon. an more particularl to cannon provided with the breech bloc accordingl to the patent application No. 579,240. filed July 27, 1922, for counterbalanced breech block. In said form of constriiction2-ahook submitted tothe action of a spring which is cocked b v the recoil and engaes when the breech is first opened with a ni which is adapted to fit under the rim of the cartridge case; said spring is disengaged at the end of the openin movement, and the extraction takes sce; a second sprin which is also coches by the recoil is use to return the elements to the initial position.

The accompan ing drawing shows by way of example t e said form of construction accordin to the invention, as well as various modi ed forms.

Fig. 1 is a sectional view of tbe starting device, and. Fig. 2 is a side elevation of the same.

Figs. 3, 4 and 5 shew the same device in section in various positions.

Fig. 6 is a sectional view of a modified Form of said device, and,

Fig. 7 is a side elevation of the same. Figs. 8, 9 and 10 are sectional views reprelenting various positions of said modified form.

Fi 11 is an axial section of the gun shewmg an extraction device in diagrammatic view.

Figs. 12, 13 and 14 shew various other positions of said device.

Fig. l5 is an end elevation ot a modified form of construction of the extraction dcvice.

Fig. 16 -is a section on thc line A-A Fig. 15, and,

ig. 17 is a section on the line B-B of the same figure:

Figs. 18, 19, 2O and 21 are sectional views analogous to Fig. 16 shewing various portions ofthc apparatus.

The starting device shewn in Figs. 1 to 5 comprises at either side of the bore of the gun a frame I8 adapted to swing upon an axle 19 secured to the breech. The said fraaie ends in a. nib 20 fitting under the rim of the cartridge case. the two nihs 2O being disposed at the ends of a diameter of said cartridge case. To tht` axle 1D is pivotcd a rocker 21 having pivoting thereto the two arms 22. 23 mounted respectively upon the axles 24. 25- secured to the frame 18. To the rocker 21 is pivoted a link 26 which is connected with the lever 27-by the axle 2B; the said lever which is wcdgc-shaped is adapted to luovc. along a shoulder 29 on the swinging frame 18 and n shoulder 70 on the breech. 0n thc other hand. the breech block 3 is provided with a projection or cam 30.

The said dcvicc is operated as follows:

lVhen the breech is closed. the nibs .20 will fit under the rim of the. cartridge case. Fig. l. breech. Fig. 3. the cam 30 will raise the rocker 21 which pivots on its axles 19 and pushes the lever 27 through tht` medium of the link 26. lf. will follow that the said lever when driven between the shoulders 29 and will drive bac-k the frame 18 and start the cartride case. As the breech continues to open. 4ig. 4. the cam 30 after disengagement from the rocker 21 will strike the arm 22 and cause it to pivot on the axle 24. whenct` it will result. that. the rocker 2l will ivot on the axleA 19 and the lever 27 will c raised. permitting the nib 20 to return to the initial position due to the insertion of a fresh cartridge.

In -t-he closing movement of the breech` Fig. 5. the cam again strikes the rocker 21 and causes it to swing, and the arm 23 will pivot on tho axle 25 m such manner as to assume a position in the path of the cam.

ln thc movement of opening the 2 lili lOO

BST AVAiLAi-BLE COPY The said arin will therefore return in the centrar?l sense toits preceding-.movement ima wi bnag'tifiis racket si into aie position Fig. 1. At the same time, the arm 22 will also resumeits first position.

Figs. 6 to 1d shew the various a starting device of a somewhat diierent character. The above-mentioned arms 22 and 23 are eliminated and are replaced by a spring device comprising a iston rod 31 pivoted tothe rocker 21 andat ached to a piston :l2 movable a ainst the spring 35 in the cylind'ei'I 33 whic is mounted on an axle 34 se.

cured tol the breech. In Fig. 6, the breech block is in the closed position and the nib 20 is engaged under the rim of the cartridge case. In the movement of o' ening the breech, the cam raises the roc ter 21; the spring 35 is compressed and the lever 27 descends thereby effecting the starting operation,1Fig."8. 'When the cani ceases to act upon the rocker 21, Fig. 9, the spring 35 drives back the rod 31 and returns the rcker 21' to the initial position. During the closin movement, Fig. 10, the rocker 21 is inve bythe cam 30', the spring 35 is' downwardly .compressed by the piston 32, and the lever 27 is raised. As the movement of the lireecli'block continues, the cam 30 will leave the rocker' 21, the sprin 35 will expand, and,

the elements will' take t e initial position.

Afterithe operation of the starting device, the' cartridge case i's automaticallyextracted, tor example 'by the device which isl sliewii inl its various positions in Figs. 11 to 14. The said device com a claw 36 slidable in a slot in the breec block 3: said claw is drawn back, when the breech block attains s. given position, by a plate 37 actuated bya spring 38 which is previously compressed. A second spring 39 serves to bring the device to the -initial position after the extraction. The spring 38 is disposed within the cylinder 40 which is' secured to the plate 37, and it is maintained between the end of a second cyl-- inder 41 which is slidable in the first. A central rod 42 having a head at each end serves to limit the spacin between the two ends of the cylinders. ie spring 39 is disposed within a cylinder 43 secured to the plate 37; it-is maintained between the end ot said c linder and apiston 45 whereof the'rod 4 is secured to the gun. A s ringpressed latch146serves to attach the p ate 37 to' the g'tin, and a gui'dexpiece 47 secured to the cannon provides for the sliding of the cylinders 40 and 43. An arm secured to the' gun caiiia eis provided with a s ring bolt 49 dispose opposite an aperture 1 in the cylinder 40.

'Iihcopeiation of said device is as follows: When thiel discharge takes place, the recoil forces back` the entire device with the exception of the' arms l48. When nuI longer he d by the cylinder 41, the spring bolt 49 positions of will be driven into the cylinder 40. After the recoil and the return to battery,- the eleinnts'will he iii the position Fig. 12,- which presents no difference from Fig. 11 save that the spring 38 is now compressed lietween the en'ds of the cylinders 40 and 4l. This compression tends to move the whoh` coinliinationof plate and cylinders to therear, hut the latch 46 prevents this movement.

The power stored up by the compression of the sprinf1r 38 is intended to' serve for the extraction di the cartridge case as well as to compress the spring 39; after thc extraction, said s iing will ell'ect the return of the device to t e initial position'.

Referring to Fi 13, it will be observed that the starting t evice has now acted. At the end of the opening movement of thc breech block, the claw 36 engages the rim of the cartridge case whilst its opposite end acts upon the latch 46, causing it to swing; this permits the spring 38 to expand, Fig. 14. thereby actuating the plate 37. claw 3G, cylinder 40 and rod 42, as well as the cylinder 43, and the cartrid e case is thus extracted. Inasmuch as the rod 44 is secured to the gun. thc end ol the Iylinder 43 compresses the spring'- 39against the piston 45, as shewn in Fig. 14.

At the end of the movement of the cylinder 40. the' spring-bolt. 49 is pressed down b v a stud 1disposed on the cylinder 40; the cylinder 4l is no longer`l retained, and the whole ,device will now return to the initial position by the action of the spring 39, Fig. 1l.

except that the breech block' remains open. The said device might be used for sin-.ill calibres should it be necessari', but by reason of the relative extent of the recoil and the stroke required for the extraction, it is pretciahle in order to ail'ord a general device. to adopt the arrangement shewn in Figs. 15 to 211.-

The said device comprises two return c vlindei's i3 disposed on either side of thc extraction cylinder 40. In each cylinder 43 is disposed a. s ring 39 and a cen tral rod 44. The rot s 44 are Secured to the gun and are provided at the outer end with the heads 45. The cylinders 43 are disposed within the cylinders 51 which are secured to the cylinder 40; the latter contains av spring 38 and a central rod 42 having a head at each end: the cylinders 51 and 40 are slidable in a support 52 secured to the gun.

A horizontal shaft 53 is mounted on the two c' linders 51; three pinioris are keyed to `said siatt: at the middle part is disposed a pinion 54 engaging a rack 55 mounted upon. the gun. and at the sides are. disposed two pinions respectively engaging the racks 57 mounted on the top ot the cylinders 43. The said device comprising racks and pinions is employed to' increase the amount of rearward movement; to this effect, the diam- BEST AVAlLABLi-z COPY eter of the wheels 56 is greater than that of the wheel 53. -When the cylindersl to- `jet-her withV shaft 5 3I and the three pinions are moved to the rear,the cylinders 43 will he inovedil in the same direction buty to a greater extent, Vdependingl upontlie ratio of the wheel ,(liauietei's. As beforeLa bar 36 disposed ljupon the breech bloclt is provided An arni 66 secured 6l whereupon is pivoted a hitch 62' havin the nib3:63,;the` support 52 'isvprovided witg a lug 641eaijrvingI `an axle 65 whereupon is pivoted a ro'elter66. The gun is 'provided with an ai-in 67 havingat the lower part two ramps .168 which act upon the latch 62 uponth'e 'recoil' andthe return to battery. The said device is'v operated as follows: ln If`ig. '16 the breech block is shown in the closed 'position and'the gun is yloaded.- ,Upon the discharge,` the recoil d-ri'ves 'back the whole device, 'witlrtlie exception of the ele ments secured to the carriage, or ,60 and 62; in this rearward' movement, theramps .68 will raise thelatchGQ, `and upon returning to batterythee'nd o f c linder 41 is arrested by said latch. The e ements will now as-i sume fthe, vpositions y Eig. 18'; nochangel Vis inadein the position shewn in .Fig.j16,' except that'fthe'mspring 38 is compressed; this compression willr` {tend to ldrive back the wholesliding ,devieefbut the ylatch 5:6 pre- 'ents. th'is"movement.

The power 'stored up in v sprin`I 3.8, .Servei-aisI to`v ext-rect 'the cartridge case as we lfas to coinpress the spring'sf-39 whiclizefect thereturii et the devietoftheinitial'- position after" the extraction has taken lace.' The rd'- tation ofthe breecl block w eiliftopened'will,V

Iii-st cause I the 'starting deviee to operate,`

and then thehook 59, Fig. xl9,` enga'ges the rim of the cartridge case at thel sometime that the hook 58 .engages theupp'er part of4 the plate 3.7 and 'causes the latch 46 to swin" so thaftvth'e' rear .end thereof is disen 'ge troni thel breech. The 4spring'Sfwil now expand, Fig. 2Q, actuating the-plate 37 claw 36. cylinders 43,-with springstfand cylinders 51'and 40. The eartridgecase is'tlius extracted, and then removed yor ejected.

The rods 44 being secured lto the gun, the springs 39 will becompressed between the heads 45 and-'the'4 ends of lthecylinders 5,1-

at the end of the` recoil movement., .The stud of the cylinder. 40 will pi'votfthe roeker66 on its axle -65 and Isaid rocker will bear upon the nib 63 and thus drives down the latch 62. The .cylinder-41 isV no longer retained, and the whole' device under the action -of the springs 39 will now return to the initial position, Fig. 16, except that the breech is now open.

Claims:

1. In a cannon ro'vided with a counterbalanced rotating breech block, a. device for f frame l double-armed lever, said arms being' adaptcartridge case extraction comprising a frame disposed upon both sides of the cannon and pivoting in a plane parallel to the axis of the cannon, a nib provided at one end of said frame and fitting under the rim ol the cartridge case for the purpose of starting the same, u double-armed lever pivoting upon said frame, a cam disposed upon the breech block and cooperating with said lever upon the rotation of the 'breech block, a wedge-shaped arm pivoting upon said lever and engaging between said pivoting frame and the cannon for the separation ot these two elements and means for returning said double-armed lever to the inoperative position after each passage of the said cam.

2. In a cannon )rovided with a counterbalanced rot-ating reech block, a device for cartridge case extraction coin rising,` aframe disposed upon both sides of tilie cannon and pivoting in a plane parallel to the axis of the cannon, a nib provided at one end of said frame and fitting under the rim of the cartridge case for the purpose of starting the same, a double-armed lever pivoting upon said-frame, a vcani disposed upon the breech block and coperatingwith said lever u on the rotation of the breech, block, .a we gesliaped arm pivoting upon said le'ver'and engaging between said pivoting frame and the cannon for the separation of these two elements, two arms swinging Iupon said and disposed on either side of said edto'bea'ctuated by said cam and to actuate said lever 'in'such manner as to return the sanie totlie inoperative position after ea'ch passa e of the saidcam.

3.l n fa'cann'on rovided with a counterbalaiicedrotating reech block, a device for cartridge ea'se extraction comprising a frame disposed upon both sides of the cannon and pivoting ina. planefparallel to the axis of the cannon, a nib provided at one end of saidframeand fitting under the' rim of the cartridge'case'for the purpose of starting the saine, a double-arme lever pivoting upon said frame, a cani disposed upon the breech bloeit and cooperating with said lever u on theroiation of the breech block, a we( geshapedl arm pivoting upon said lever and engaging between said pivoting traine and the lcannon for tle separation of these two elements, springs acting upon said lever after thepassage of the said cam wherebtyv l the lever is returned to the inoperative position, and stopieces fixing the inoperative position ofI sai' jlever.

4. In a ca nnon rovided with a'counterbalanced rotating lireeeh block, a device for cartridge case extraction comprising a frame disposed upon both sides of the cannon and pivoting in a plane parallel to the axis of the cannon, a nib provided at one end ot said frame and fitting under the rimof the careis BEST AVAlLABLE COPY BEST AVAILABLE COPY tridge case for the pur ose of starting the saine, a double armed ever pivoting upon said traine, a cani disposed upon the breech block and cooperating with said lever u on the rotation of the breech block, a lWe ge- Shaped arm pivoting upon said lever and engaging between said pivoting frame and thc cannon for the sc aration of these two elements, a rod pivote to said lever, two pistons mounted Aon said rod, a guifdefor said pisto'ns'whicli-'is pivoted to Ithe cannon, a spring' disposed etwcen said pistons, a washer movable u' on each piston and' adapt'- cd to receive the t rust of said sprng,'stop' pieces disposed upon said guide and adapted to arrest'the ysaid washers and to permit the compression ofthe, spring during Ithe passage of; the said cam.

5. In a cannon rovided with a countery,balanced rotating reech block and having therein .an aperture for the -passage of projectiles, a device for cartridge case extraction com'prisin irelaw .which is slidable ii on saidbreec vblock parallel to the axis ,o saida ertiire, a hook provided at the forwarden of said claw and engaging under the rim of the cartridge case when the breech is opened, and means for effecting the Arearward motion of the said claw.

,6.4 In a cannon rovided with a counterbalanced rotating 'reech block and having thereinlan aperture for the assage of projectilesa device for cartri ge case extraction com risin a claw which is slidable n `onsai breec block garallel to the axis oi said aperture, a hoo' provided at the forward end of said claw'land enga ing under the rim of the cartridge case w ien the breech is opened, a hook provided at the rear end of said claw, a plate which is slidable n on the cannon parallel to the axis thereo means for engaging said claw with said plate when the breech block is opened, actuating means adapted to exert a pressure upon said late when the cannonreturns to battery an to etl'ect the recoil of the plate and the extraction ofthe cartridge case when said breech block is opened. l

7. In a cannonrovided with a'counterbalanced rotating. reeoh block and having therein an aperture for the assage of projectiles., a device for cartridge case extraction com risin a claw which is slidable u on sai breec block arallel to the axis o said aperture, a hoo provided at the forward end of said claw and engaging under the rim of the cartridge case when the breech is opened, a hook provided at the rear end of said claw, a plate which is slidable upon .the cannon parallel to lthe axis thereof, a spring latch pivoting upon said plate, a stop-piece disposed upon the cannon and having the .said latch engaging in the rear of the Ilsaine in order to counteract the recoil of the said plate, a hook provided upon said latch and adapted to engage the rear hook of said claw and to be disengaged troni the said stop-piece by said rear hook when thi: breech block is opened, and means for effect ing the recoilof said plate.

8. In a cannon rovided with a counterbalanced rotating reech block, and havingy therein an aperture for the passage ot projectiles, a.l device for cartridge case extraction com rising a claw which is slidablr` i'i on sai breech block parallel to the axis o` saidA aperture, a hook provided at th(` forward end of said claw and engaging under the rim of the cartridge case when the breech is opened, a hook provided at. the rear end of said claw, a plate which is slidable ii ion the cannon parallel to the axis thereo means foi; engaging said plate with the said claw when the breech 1s opened. means for engaging said plate with the cannon and for releasing it therefrom. a spring adapted to press at one end upon said plate and at the other en'd upon the rear of tht` cannon and yto be compressed by the return of the cannon to battery.

9. a cannon rovided with a counterbalanced rotating reech block and having therein an aperture for the passage of projectiles, a device for cartridge case extraetion coin rising a claw which is slidable u on sai breech block parallel to the axis o said aperture, a hook provided at the forward end of said claw and engaging iinder the'rim of the cartridge case when the breech is opened, a plate which is slidablo. upon the cannon parallel to the axis thereo means for en a ing said plate with the. said claw when t e reech is opened, means for en aging said plate with the cannon and for re easing it therefrom, an outer cylinder provided with a bottom and disposed upon said plate parallel to the axis of the cannon, an inner cylinder provided with a. bor` tom and'adapted to slide within the said outer cylinder .and to bearl loosely1 iig-ainsi. the cannon, a s ring disposed within the two cylindersan adapted to bear upon the two cylinder bottoms and to separate the same, and means for retaining said inner cylinder after the recoil and during the return of the cannon to battery, the said spring being then compressed.

10. In a cannon rovided with a counter balanced rotating reech block and having therein an' aperture for the passage of projectiles, a device for cartridge case extraetion com rising a claw which is slidiible u on sai breech block parallel to the axis o, said aperture, -a hook provided at. the forward end of said claw and engaging iinder the rim of the cartridge case when the breech is opened, a plate which is slidable upon the cannon parallel to the axis thereo means for en a ing said plate with the said claw when t e reech is opened, means BEQT AVAILABLE COPY for en aging said plate with the cannon and for re easing it therefrom, an outer cylinder provided with a bottom and disposed npon said plate parallel to the axis of the cannon an inner cylinder provided with a bottom and adapted to slide within said outer cylinder and to bear loosely against the cannon, a spring disposed within the two cylinders and adapted to bear upon the two cylinder bottoms and to separate the same, a longitudinal groove being foi-ined in the wall of the outer cylinder, a fixed springbolt adapted to slide in the said groove and to engage at the rear of the inner cylinder bottom at the end of the recoil and during the return of the cannon to battery thereby eflectin the compression of the spring, means or disengaging said plate, and means for releasing said s ring bo t at the end of the recoil o said p ate.

11. In a cannon rovided with a counterbalanced rotating reech block and having therein an aperture for the assage of projectiles, a device for cartri ge case extraction com risin a claw which is slidable u on sai breec block arallel to the axis o said aperture, a hoo provided at the forward end of said claw and engaging under the rim of the cartridge case when the breech is opened, a plate which is slidable upon the cannon parallel to the axis thereo means for engaging said plate with the said claw when the breech is opened, means for en aging said plate with the cannon and for re easin it therefrom, an outer cylinder provide with a bottom and disposed upon said plate parallel to the axis of the cannon, an inner cylinder rovided with a bottom and adapted to slide within said outer cylinder, and to bear loosely against the cannon, a s ring dis osed within the two cylinders an adapte to bear upon tinl two cylinder bottoms and to separate the same means for retaining said inner cylinder during the return of the cannon to battery and for eilectinrT the compression ol' said spring means or disengaging said plate and im' eil'ectiner the recoil of the same under the action o? said spring, a third cylinder provided with a bottoinand secured to said late parallel to the axis of the cannon, said cylinder being ada ted to bear by means of its bottom upon tie rear ofthe cannon, a rod secured to the cannon and longitudinally slidable in said eylinch-r, a head provided at the outer end of sind rod, a sprin dis oscd betweenthe bottom of said thir cy Inder and said head, the said spring bein f adapted to be compressed b the recoil o said late and to return tli'e plate to the initia osition.

In testimony that I e aim the foregoing asm invention I have si ned my name. PR SPERJULES CHA BCNWIER. 

